common/keyboard.c

   1 /*
   2 Copyright 2011,2012 Jun Wako <wakojun@gmail.com>
   3
   4 This program is free software: you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation, either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17 #include "keyboard.h"
  18 #include "matrix.h"
  19 #include "keymap.h"
  20 #include "host.h"
  21 #include "led.h"
  22 #include "keycode.h"
  23 #include "timer.h"
  24 #include "print.h"
  25 #include "debug.h"
  26 #include "command.h"
  27 #include "util.h"
  28 #include "sendchar.h"
  29 #include "bootloader.h"
  30 #ifdef MOUSEKEY_ENABLE
  31 #include "mousekey.h"
  32 #endif
  33
  34
  35 void keyboard_init(void)
  36 {
  37     // TODO: to enable debug print magic key bind on boot time
  38
  39     // TODO: configuration of sendchar impl
  40     print_sendchar_func = sendchar;
  41
  42     timer_init();
  43     matrix_init();
  44
  45     /* boot magic keys goes here */
  46     matrix_scan();
  47 #ifdef IS_BOOTMAGIC_BOOTLOADER
  48     /* kick up bootloader */
  49     if (IS_BOOTMAGIC_BOOTLOADER()) bootloader_jump();
  50 #endif
  51 #ifdef IS_BOOTMAGIC_DEBUG
  52     if (IS_BOOTMAGIC_DEBUG()) debug_enable = true;
  53 #endif
  54
  55 #ifdef PS2_MOUSE_ENABLE
  56     ps2_mouse_init();
  57 #endif
  58 }
  59
  60 /*
  61  * Do keyboard routine jobs: scan mantrix, light LEDs, ...
  62  * This is repeatedly called as fast as possible.
  63  */
  64 void keyboard_task(void)
  65 {
  66     static matrix_row_t matrix_prev[MATRIX_ROWS];
  67     static uint8_t led_status = 0;
  68     matrix_row_t matrix_row = 0;
  69     matrix_row_t matrix_change = 0;
  70
  71     matrix_scan();
  72     for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
  73         matrix_row = matrix_get_row(r);
  74         matrix_change = matrix_row ^ matrix_prev[r];
  75         if (matrix_change) {
  76             if (debug_matrix) matrix_print();
  77
  78             for (uint8_t c = 0; c < MATRIX_COLS; c++) {
  79                 if (matrix_change & ((matrix_row_t)1<<c)) {
  80                     action_exec((keyevent_t){
  81                         .key.pos  = (keypos_t){ .row = r, .col = c },
  82                         .pressed = (matrix_row & (1<<c)),
  83                         .time = timer_read()
  84                     });
  85                     // record a processed key
  86                     matrix_prev[r] ^= ((matrix_row_t)1<<c);
  87                     // process a key per task call
  88                     goto MATRIX_LOOP_END;
  89                 }
  90             }
  91         }
  92     }
  93     // call with pseudo tick event when no real key event.
  94     action_exec(TICK);
  95
  96 MATRIX_LOOP_END:
  97
  98 #ifdef MOUSEKEY_ENABLE
  99     // mousekey repeat & acceleration
 100     mousekey_task();
 101 #endif
 102
 103     // update LED
 104     if (led_status != host_keyboard_leds()) {
 105         led_status = host_keyboard_leds();
 106         keyboard_set_leds(led_status);
 107     }
 108
 109     return;
 110 }
 111
 112 void keyboard_set_leds(uint8_t leds)
 113 {
 114     led_set(leds);
 115 }